RHDJapan original Spring Campaign 2025 ~April 30

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OS-GIKEN - RHDJapan

A famed machine shop since the times when the 510 Bluebird single cam L-head engine was a popular tuning base. Unlike its main racing clutch competition, Ogura Clutch (ORC) which manufactures clutches for a wide array of cars and other applications, OS Giken was established solely for producing tuning parts. Since the early days of the company, OS Giken has been making new innovative parts time and time again. This innovation made them a common subject of talk in the tuning community and their popularity started to grow at the grass roots racing level. With the debut of the ground breaking DOHC 4 Valve TC16-MAII/TC24-B1 L-engine heads in 1975 the company really became unstoppable. Then 25 yeasr later they pushed the limits again with the RB30 OS-E2996 Engine. Innovation from OS Giken came again two years later with the release of the RB26 Sequential Transmission, and the Super Lock LSD came the following year. OS Giken continues to excel at bringing the tuning industry new and innovative products and will definitely continue to deliver high quality products for years to come
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  1. OS Giken Street Master GTS1CD Clutch Kit Mono Metal Soft Cover - NA1 Quick view

    OS Giken Street Master GTS1CD Clutch Kit Mono Metal Soft Cover - NA1

    In Stock: Ships the next business day
     

    List Price: ¥206,800

    Sale Price: ¥160,319

    You Save: ¥46,481

  1. OS GIKEN TS2C Multi Plate Racing Clutch Overhaul Kit-B - FD3S Quick view

    OS GIKEN TS2C Multi Plate Racing Clutch Overhaul Kit-B - FD3S

    Stock Confirmed: Ships 2~7 business days
     

    List Price: ¥114,400

    Sale Price: ¥82,169

    You Save: ¥32,231

  1. OS Giken Release Sleeve Bearing TS2C - FD3S Quick view

    OS Giken Release Sleeve Bearing TS2C - FD3S

    Stock Confirmed: Ships 2~7 business days
     

    List Price: ¥10,780

    Sale Price: ¥8,019

    You Save: ¥2,761

  1. OS Giken TS2C Twin Plate Clutch Kit - FD3S Quick view

    OS Giken TS2C Twin Plate Clutch Kit - FD3S

    Stock Confirmed: Ships 2~7 business days
     

    List Price: ¥190,300

    Sale Price: ¥136,679

    You Save: ¥53,621

  1. OS Giken R2CD Multi Plate Racing Clutch Kit Replacement Center Hub - ST185 ST205 SW20 Turbo Quick view

    OS Giken R2CD Multi Plate Racing Clutch Kit Replacement Center Hub - ST185 ST205 SW20 Turbo

    Stock Confirmed: Ships 2~7 business days
     

    List Price: ¥25,300

    Sale Price: ¥18,179

    You Save: ¥7,121

  1. OS Giken R4C Quadruple Plate Clutch Kit - BNR32 Zenki Quick view

    OS Giken R4C Quadruple Plate Clutch Kit - BNR32 Zenki

    Stock Confirmed: Ships 2~7 business days
     

    List Price: ¥270,600

    Sale Price: ¥192,649

    You Save: ¥77,951

  1. OS Giken Super Lock LSD Limited Slip Differential Gear Oil OS-250R - 80W-250 1 Liter FR Quick view

    OS Giken Super Lock LSD Limited Slip Differential Gear Oil OS-250R - 80W-250 1 Liter FR

    2 0 5 5

    2 Review(s) | Add Your Review

    Stock Confirmed: Ships 2~7 business days
     

    List Price: ¥4,620

    Sale Price: ¥3,889

    You Save: ¥731

  1. OS Giken Release Sleeve Bearing R4C - BNR32 Zenki Quick view

    OS Giken Release Sleeve Bearing R4C - BNR32 Zenki

    Stock Confirmed: Ships 2~7 business days
     

    List Price: ¥10,780

    Sale Price: ¥8,019

    You Save: ¥2,761

  1. OS Giken Release Sleeve Bearing R3C - JZA80 Zenki Quick view

    OS Giken Release Sleeve Bearing R3C - JZA80 Zenki

    Stock Confirmed: Ships 2~7 business days
     

    List Price: ¥10,780

    Sale Price: ¥8,019

    You Save: ¥2,761

  1. OS Giken Push Pull Movement Conversion Kit R4C - JZA80 6MT Quick view

    OS Giken Push Pull Movement Conversion Kit R4C - JZA80 6MT

    Stock Confirmed: Ships 2~7 business days
     

    List Price: ¥66,000

    Sale Price: ¥47,409

    You Save: ¥18,591

  1. OS Giken R4C Quadruple Plate Clutch Kit - JZA80 6MT Quick view

    OS Giken R4C Quadruple Plate Clutch Kit - JZA80 6MT

    2 0 5 5

    2 Review(s) | Add Your Review

    Stock Confirmed: Ships 2~7 business days
     

    List Price: ¥270,600

    Sale Price: ¥192,649

    You Save: ¥77,951

  1. OS GIKEN Reinforced Input Shaft SR20DET Quick view

    OS GIKEN Reinforced Input Shaft SR20DET

     

    List Price: ¥110,000

    Sale Price: ¥79,009

    You Save: ¥30,991

  1. OS Giken Close Gear Countershaft - RB26 Quick view

    OS Giken Close Gear Countershaft - RB26

    In Stock: Ships the next business day
     

    List Price: ¥162,800

    Sale Price: ¥120,639

    You Save: ¥42,161

  1. OS Giken OS-TCD Limited Slip Differential LSD Rear - GT-R R35 Quick view

    OS Giken OS-TCD Limited Slip Differential LSD Rear - GT-R R35

     

    List Price: ¥330,000

    Sale Price: ¥268,489

    You Save: ¥61,511

  1. OS GIKEN Rear LSD - OS-NEO Nissan GT-R R35 Quick view

    OS GIKEN Rear LSD - OS-NEO Nissan GT-R R35

     

    List Price: ¥210,100

    Sale Price: ¥177,240

    You Save: ¥32,860

  1. OS Giken GT Street Master Clutch Kit Twin Metal Soft Cover - BNR34 Quick view

    OS Giken GT Street Master Clutch Kit Twin Metal Soft Cover - BNR34

     

    List Price: ¥220,000

    Sale Price: ¥170,544

    You Save: ¥49,456

  1. OS Giken R3C Triple Plate Clutch Kit - FC3S Quick view

    OS Giken R3C Triple Plate Clutch Kit - FC3S

     

    List Price: ¥246,400

    Sale Price: ¥176,969

    You Save: ¥69,431

  1. OS Giken TR2CD Multi Plate Racing Clutch Overhaul A-Set - JZA80 Quick view

    OS Giken TR2CD Multi Plate Racing Clutch Overhaul A-Set - JZA80

     

    List Price: ¥93,500

    Sale Price: ¥67,159

    You Save: ¥26,341

  1. OS Giken R2CD R2C Pressure Plate Replacement Quick view

    OS Giken R2CD R2C Pressure Plate Replacement

     

    List Price: ¥29,700

    Sale Price: ¥23,709

    You Save: ¥5,991

  1. OS Giken STR2C Twin Plate Clutch Kit - RX-8 SE3P Quick view

    OS Giken STR2C Twin Plate Clutch Kit - RX-8 SE3P

     

    List Price: ¥196,900

    Sale Price: ¥141,419

    You Save: ¥55,481

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